Corrugating roll lubricator



A. F. SHIELDS CORRUGATING ROLL LUBRICATOR June 12, 1951 2 Sheets-Sheet 1 Filed March 17, 1948 INVENTOR. A5551?! Z SAC 51 08 June 12, 1951 A- sHlELDS 2,557,011

CORRUGATING ROLL LUBRICATOR Filed March 17, 1948 2 Sheets- Sheet 2 INVEN'IOR. ALQQQT A" ya/aw ATTOR NEYG Patented June 12, 1951 'CORRUGATING ROLL LUBRICATOR Albert F. Shields, Forest Hills, N. Y., assignor to S & S Corrugated Paper Machinery 00., 1110., Brooklyn, N. Y., a corporation of New York Application March 17, 1948, Serial No. 15,327

3 Claims.

My present invention relates to corrugating machines and more specifically to impregnating and lubricating means adapted selectively to apply a lubricant or coating to the web which is to be corrugated or to apply the lubricant or coating to the corrugating rolls themselves.

While my invention is primarily adapted for application to single facers in which one of the webs is corrugated and then applied to a liner, it may be utilized in double facers for lubricating the second outer liner which is applied to the opposite face of the corrugated web.

Essentially, my invention comprises a tube extending parallel to the corrugating rolls and adjacent thereto. The tube is provided with a number of openings directed toward the uncovered surface of one of the rolls.

Corrugating rolls in single facers comprise a pair of parallel shafts having longitudinal flutes which mesh with each other. The web to be corrugated passes over the first roll and then between the first and second rolls which form the flutes in the web; the corrugated web then moves around and under the second roll where the liner is applied during the portion of the travel of the web under the second roll.

According to my invention, the foregoing tube or pipe is mounted just above the second roll where its surface is not covered by the web, and the openings are preferably directed toward the second roll.

The tube, however, may be rotated so that the openings thereof are directed toward the web passing over the first roll. In order to make this possible, the tube while it is mounted over the second roll is nevertheless placed adjacent the first roll so that this selective operation can occur.

A source of paraffin or other lubricant is supported in any suitable position, preferably above the tube, and is suitably connected to the tube. A source of fluid under pressure, preferably steam, is also connected to the tube in such manner that it aspirates and atomizes the parafiin or other lubricant at the point of connection thereof to the tube and drives the paraffin or other lubricant into the tube under pressure so that it may emerge from the openings in the tube in highly atomized form.

The source of paraflin may be closed off so that steam alone may emerge from the tube and be directed toward the web passing over the first roller to act as an auxiliary heater following the pre-heater or to act as a pre-heating means, or the tube may be rotated on its axis so that the openings are directed toward the second corrugating roll, in which case the paraffin petcock .is

opened so that the parafiin or other lubricant may be atomized and sprayed on the second corrugating roll.

When the corrugated liner moves around the under side of the second roll, it is subjected to the pressure first of the adhesive applicator and then of the liner applying roll so that it may tend to stick to the second corrugating roll at the point where it should be pulled off.

The application of parafiin or other lubricant in this manner facilitates the removal of the corrugated web from the second roll at the appropriate time.

Accordingly, the object of my invention is the provision of novel means for lubricating a corrugating roll.

Another object of 7 my invention is the provision of novel means selectively usable for lubricating the corrugating roll or for pre-heating a web to be corrugated.

Another object of my invention is the-provision of novel means for atomizing a lubricant and applying the same under pressure to a corrugating roll.

The foregoing and many other objects of my invention will become apparent in the following description and drawings in which:

Figure l is a schematic side view of a single face corrugator embodying the lubricant applicator of my invention.

Figure 2 is a cross-sectional view of the applicator tube taken on line 2-2 of Figure 3,

Figure 3 is an elevation of the lubricating apparatus apart from the corrugating machine.

Referring first to Figure 1, I have here shown a standard single face corrugator of the type well-known in the art in which the web ID to be corrugated passes over the tensioning and guide rolls l I, l2, l3 and then over the pre-heater I 4 which at the area l5 applies steam under pres-, sure to the web ID in order to moisten and heat the same.

The web then passes over the first corrugating roll l1, then down between the corrugating roll I! and the second corrugating roll I8 where the web is corrugated at section I 9 where the two rolls intermesh.

The web then passes around the under side of the second corrugating roll l8 where adhesive is applied to the crowns of the flutes in the web by applicator roll 25 which is in contact with the glue roll 25 which in turn rotates in the glue pan 2'1. Glue pan 2'! is mounted on links 28 and 29.

and the position thereof is controlled by cam operated by handle 3 I.

After the web Hi leaves the glue applicator 25 and while it is still on the under side of corrugating roll 18, the liner taken from an appropriate source and passing over the guide rolls 36, 31, 38 is applied to the corrugated web 10 by roll 35.

The single face corrugated web [IL-40 passes over the guide roll 42 to other apparatus.

The foregoing is a standard single face corrugator well-known in the art.

Consequently, the various specific elements applicable to the members thus far described and the various methods of adjusting these elements require no further description here.

My invention is directed to the tube or pipe mounted between the side frame elemnts 5|, 52 and provided with the handle 53 keyed thereto to rotate the same.

The tube is rotatable in the side frame element 51 at one end and in the T 54 at the other end. The tube is provided with a plurality of small openings 55, 55 directed toward section 56 of the second corrugating roll 18.

The tube may be rotated by handle 53 to a position where the openings :55 are directed toward section 51 of the web I0 passing over the first corrugating roll 11.

A tank 60 (Figure 3) containing parafiin or other lubricant is connected through the petcock BI and the compression couplings 62, 63 to the needle valve 64 and through the oil gauge 65 and the reducer 66 to the T 54.

A source of steam under pressure entering through pipe Ill passes through the globe valve H, the elbows 12, 13, 14 to the restricted nozzle 15 inside the right-handend of the T 54.

With petcock GI and valve 64 open, the paraffin or other lubricant passes down from the tank 60 to the T 56. With globe valve 'H open, the steam from pipe 10 enters the T 54 through the restricted nozzle 15.

This has an vaspirating effect on the paraffin or other lubricant drawing it out rapidly from its source and atomizin it, as well as driving it under pressure into the pipe or tube 50 and out through the openings 55. The parailin or other lubricant is thus directed under pressure to section 56 of the second corrugating roll IB.

Where it is desired to utilize my novel device solely as a pre-heater, the petcock 61 and needle valve 64 may be closed, in which case only steam will emerge through the openings 55 of the pipe 50, and handle 53 should be operated to a position where the openings 55 of the pipe 50 are directed to section 51 of the web passing over the corrugating roll II.

By this means, therefore, simplified apparatus is provided for lubricating the second corrugating roll for the purposes hereinbefore described, and the same apparatus may be used as a preheater when desired.

In the foregoing I have described my invention solely in connection with specific illustrative embodiments thereof. Since many variations and modifications of my invention will now be obvious to those skilled in the art, I prefer to be bound not by the specific disclosure herein contained but only by the appended claims.

I claim:

1. A lubricating device for a pair of corrugating rolls comprising a source of lubricant; a source of fluid under pressure; apparatus for mixing the lubricant and the fluid under pressure; a conduit parallel to the corrugating rolls; said mixed lubricant and fluid being directed into said conduit; aligned openings in said conduit; means for directing said openings toward a selected corrugating roll; said conduit being rotatable on its axis; a valve for disconnecting the source of lubricant from the mixing apparatus, and permitting only the fluid under pressure to enter the conduit.

2. A lubricating device for a pair of corrugating rolls comprising a source of lubricant; a source of steam; apparatus for mixing the lubricant and the steam; a' conduit parallel to the corrugating rolls; said mixed lubricant and steam being directed into said conduit; openings in said conduit; means for directing said openings toward a selected corrugating roll; said conduit being rotatable on its axis to direct said openings toward a web adjacent the corrugating roll.

3. A lubricating device for a pair of corrugating rolls comprising a source of lubricant; a source of steam; apparatus for mixing the lubricant and the steam; a conduit parallel to the corrugating rolls; said mixed lubricant and steam being directed into said conduit; openings in said conduit; means for directing said openings toward a selectedcorrugating roll; said conduit be ing rotatable on its axis to direct said openings toward a web adjacent the corrugating roll; a valve for disconnecting the source of lubricant from the mixing apparatus, and permitting only the steam to enter the conduit to moisten and heat said web.

ALBERT F. SHIELDS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,021,062 McGowan Mar. 26, 1912 1,073,093 Coddington Sept. 16, 1913 1,115,265 Weis Oct. 27, 1914 1,197,873 Iremain Sept. 12, 1916 1,228,862 Wight June 5, 1917 1,642,782 Langston Sept. 20, 1927 1,796,541 Schoo Mar. 17, 1931 2,017,403 Lorig et al Oct. 15, 1935 2,065,576 George Dec. 29, 1936 2,140,289 Hurtt et al Dec. 13, 1938 2,170,405 Greenwood Aug. 22, 1939 2,285,617 Schwartz June 9, 1942 

